EP0292546A1 - Schaltungsanordnung zur Bestimmung eines Extremwertes einer Spannung. - Google Patents
Schaltungsanordnung zur Bestimmung eines Extremwertes einer Spannung.Info
- Publication number
- EP0292546A1 EP0292546A1 EP88900218A EP88900218A EP0292546A1 EP 0292546 A1 EP0292546 A1 EP 0292546A1 EP 88900218 A EP88900218 A EP 88900218A EP 88900218 A EP88900218 A EP 88900218A EP 0292546 A1 EP0292546 A1 EP 0292546A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- voltage
- frequency
- extreme value
- physical quantity
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/14—Systems for determining direction or deviation from predetermined direction
- G01S3/38—Systems for determining direction or deviation from predetermined direction using adjustment of real or effective orientation of directivity characteristic of an antenna or an antenna system to give a desired condition of signal derived from that antenna or antenna system, e.g. to give a maximum or minimum signal
- G01S3/40—Systems for determining direction or deviation from predetermined direction using adjustment of real or effective orientation of directivity characteristic of an antenna or an antenna system to give a desired condition of signal derived from that antenna or antenna system, e.g. to give a maximum or minimum signal adjusting orientation of a single directivity characteristic to produce maximum or minimum signal, e.g. rotatable loop antenna or equivalent goniometer system
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/125—Means for positioning
- H01Q1/1257—Means for positioning using the received signal strength
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
- H03J3/02—Details
- H03J3/12—Electrically-operated arrangements for indicating correct tuning
Definitions
- the invention relates to an arrangement for determining an extreme value of a physical quantity.
- a measuring receiver is known, for example, for the perfect adjustment of the parabolic mirror of a satellite receiver (Funkschau 1968, number 22, page 59).
- the structure of such a measuring receiver is very complex and therefore expensive.
- the operation of such a measuring receiver can only be carried out by a specialist and the reading of the optimal setting on a scale is not always easily recognizable.
- the invention has for its object to find the simplest possible structure for determining the extreme value of a physical quantity, in particular for determining the maximum output voltage of an antenna amplifier and thus the optimal alignment of an antenna. This object is achieved by the invention specified in the patent claim. Further advantageous embodiments of the invention result from the subclaims.
- FIG. 1 shows a block diagram of the invention
- FIG. 2 shows a further block diagram of the invention
- FIG. 3 shows a detailed circuit diagram according to FIG. 2.
- the determination of the optimal alignment of an antenna 1 results from the measurement of the rectified IF output voltage U A of the antenna amplifier 2.
- This output voltage U A is applied to a voltage-frequency converter 3 which, for example, has the property at high values of the voltage U A to deliver a low frequency.
- the frequency of the voltage U A is higher, the smaller the voltage U A is, that is to say if the antenna 1 is poorly aligned.
- the output voltage u B of the voltage frequency converter 3 consists of pulses I, for example, via a electro-acoustic transducers can be converted into an acoustic signal.
- the output voltage u B in the form of the pulses I is used to actuate an electronic switch 4 by applying these pulses I to the control input C of the electronic switch 4.
- the electronic switch 4 is closed during the pulses I and switches a signal generated by an oscillator 5 in the hearing range of, for example, 1000 Hz, which is fed to the input A of the electronic switch 4, at the output B of which pulse packages I 'can be removed, which are after Gain in an LF amplifier 7 can be made audible via the electronic converter 6.
- the antenna voltage U A will initially be very small, so that the 1000 Hz pulse packets I 'follow one another very quickly.
- the pulse packets I 'become audible at ever greater time intervals and, depending on the design of the voltage-frequency converter 3, no longer occur.
- the invention has the advantage that even an inexperienced specialist, even a non-specialist, can adjust the antenna because the acoustic signal can be evaluated more clearly and easily than a pointer deflection that is difficult to read on a scale.
- FIG. 1 A further circuit diagram of the invention is shown in FIG. While in Figure 1 the signal voltage of the continuously oscillating oscillator 5 is switched through the controlled switch 4 in the rhythm of the pulses of the voltage-frequency converter 3, a further possibility of generating the pulse packets I 'is shown by the oscillator 5 itself via the control input C 'and a switch 8 in the rhythm of the pulses I is turned on.
- FIG. 3 shows a detailed circuit diagram according to the variant in FIG. 2.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Circuits Of Receivers In General (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Selective Calling Equipment (AREA)
- Measurement Of Current Or Voltage (AREA)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT88900218T ATE63183T1 (de) | 1986-12-03 | 1987-11-28 | Schaltungsanordnung zur bestimmung eines extremwertes einer spannung. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863641310 DE3641310A1 (de) | 1986-12-03 | 1986-12-03 | Anordnung zur bestimmung eines extremwertes einer physikalischen groesse |
DE3641310 | 1986-12-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0292546A1 true EP0292546A1 (de) | 1988-11-30 |
EP0292546B1 EP0292546B1 (de) | 1991-05-02 |
Family
ID=6315375
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88900218A Expired - Lifetime EP0292546B1 (de) | 1986-12-03 | 1987-11-28 | Schaltungsanordnung zur Bestimmung eines Extremwertes einer Spannung |
EP87117627A Expired - Lifetime EP0270958B1 (de) | 1986-12-03 | 1987-11-28 | Schaltungsanordnung zur Bestimmung eines Extremwertes einer Spannung |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87117627A Expired - Lifetime EP0270958B1 (de) | 1986-12-03 | 1987-11-28 | Schaltungsanordnung zur Bestimmung eines Extremwertes einer Spannung |
Country Status (10)
Country | Link |
---|---|
US (1) | US4893288A (de) |
EP (2) | EP0292546B1 (de) |
JP (1) | JP2648355B2 (de) |
KR (1) | KR890700273A (de) |
DE (2) | DE3641310A1 (de) |
DK (1) | DK431688D0 (de) |
ES (1) | ES2029259T3 (de) |
FI (1) | FI883560A0 (de) |
GR (1) | GR3004027T3 (de) |
WO (1) | WO1988004478A1 (de) |
Families Citing this family (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3930856A1 (de) * | 1989-09-15 | 1991-04-04 | Grundig Emv | Automatische abgleichvorrichtung fuer die polarizersteuerung in einer satellitenempfangsanlage |
DE4233144A1 (de) * | 1992-10-02 | 1994-04-07 | Diehl Gmbh & Co | Sextant |
US5469471A (en) * | 1994-02-01 | 1995-11-21 | Qualcomm Incorporated | Method and apparatus for providing a communication link quality indication |
FR2718243B1 (fr) * | 1994-03-31 | 1996-05-10 | Sagem | Procédé et dispositif de réglage d'une antenne de réception de signaux de télévision. |
TW252226B (en) * | 1994-06-09 | 1995-07-21 | Thomson Consumer Electronics | Antenna alignment apparatus and method utilizing the error condition of the received signal |
US5502496A (en) * | 1994-06-09 | 1996-03-26 | Thomson Consumer Electronics, Inc. | Apparatus for providing audible instructions or status information for use in a digital television system |
US5561433A (en) * | 1994-06-09 | 1996-10-01 | Thomson Consumer Electronics, Inc. | Apparatus and method for aligning a receiving antenna utilizing an audible tone |
US5903237A (en) * | 1995-12-20 | 1999-05-11 | Hughes Electronics Corporation | Antenna pointing aid |
US5923288A (en) * | 1997-03-25 | 1999-07-13 | Sony Coporation | Antenna alignment indicator system for satellite receiver |
EP0977302A3 (de) * | 1998-07-27 | 2001-05-02 | Siemens Aktiengesellschaft | Verfahren zum Ausrichten von Antennen von dezentralen Einrichtungen auf eine mit diesen drahtlos verbundene zentrale Einrichtung |
GB2345214B (en) * | 1998-10-16 | 2003-11-05 | British Sky Broadcasting Ltd | An antenna alignment meter |
US20050279696A1 (en) * | 2001-08-23 | 2005-12-22 | Bahm Jeannine R | Water filter materials and water filters containing a mixture of microporous and mesoporous carbon particles |
EP1746683A1 (de) | 2005-07-18 | 2007-01-24 | Advanced Digital Broadcast S.A. | Signalempfänger und Verfahren zur Anpassung einer Antenne zur Empfangsnahme von mindestens zwei Signalen |
US7683709B1 (en) | 2008-06-05 | 2010-03-23 | The United States Of America As Represented By The Secretary Of The Navy | Low frequency power amplifier employing high frequency magnetic components |
RU2451371C1 (ru) * | 2011-02-09 | 2012-05-20 | Открытое акционерное общество "Обнинское научно-производственное предприятие "Технология" (ОАО "НПП "Технология") | Стенд для измерения радиотехнических параметров антенных обтекателей |
US9930592B2 (en) | 2013-02-19 | 2018-03-27 | Mimosa Networks, Inc. | Systems and methods for directing mobile device connectivity |
US9179336B2 (en) | 2013-02-19 | 2015-11-03 | Mimosa Networks, Inc. | WiFi management interface for microwave radio and reset to factory defaults |
US9362629B2 (en) | 2013-03-06 | 2016-06-07 | Mimosa Networks, Inc. | Enclosure for radio, parabolic dish antenna, and side lobe shields |
US9130305B2 (en) | 2013-03-06 | 2015-09-08 | Mimosa Networks, Inc. | Waterproof apparatus for cables and cable interfaces |
US10742275B2 (en) | 2013-03-07 | 2020-08-11 | Mimosa Networks, Inc. | Quad-sector antenna using circular polarization |
US9191081B2 (en) | 2013-03-08 | 2015-11-17 | Mimosa Networks, Inc. | System and method for dual-band backhaul radio |
US9295103B2 (en) | 2013-05-30 | 2016-03-22 | Mimosa Networks, Inc. | Wireless access points providing hybrid 802.11 and scheduled priority access communications |
US10938110B2 (en) | 2013-06-28 | 2021-03-02 | Mimosa Networks, Inc. | Ellipticity reduction in circularly polarized array antennas |
CN103634662A (zh) * | 2013-12-19 | 2014-03-12 | 珠海迈科电子科技有限公司 | 一种视频信号强度的提示方法及系统 |
US9001689B1 (en) | 2014-01-24 | 2015-04-07 | Mimosa Networks, Inc. | Channel optimization in half duplex communications systems |
US9780892B2 (en) * | 2014-03-05 | 2017-10-03 | Mimosa Networks, Inc. | System and method for aligning a radio using an automated audio guide |
US9998246B2 (en) | 2014-03-13 | 2018-06-12 | Mimosa Networks, Inc. | Simultaneous transmission on shared channel |
US10958332B2 (en) | 2014-09-08 | 2021-03-23 | Mimosa Networks, Inc. | Wi-Fi hotspot repeater |
WO2017123558A1 (en) | 2016-01-11 | 2017-07-20 | Mimosa Networks, Inc. | Printed circuit board mounted antenna and waveguide interface |
US11251539B2 (en) | 2016-07-29 | 2022-02-15 | Airspan Ip Holdco Llc | Multi-band access point antenna array |
US10511074B2 (en) | 2018-01-05 | 2019-12-17 | Mimosa Networks, Inc. | Higher signal isolation solutions for printed circuit board mounted antenna and waveguide interface |
US11069986B2 (en) | 2018-03-02 | 2021-07-20 | Airspan Ip Holdco Llc | Omni-directional orthogonally-polarized antenna system for MIMO applications |
US11289821B2 (en) | 2018-09-11 | 2022-03-29 | Air Span Ip Holdco Llc | Sector antenna systems and methods for providing high gain and high side-lobe rejection |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2639529A1 (de) * | 1976-09-02 | 1978-03-09 | Sihn Jr Kg Wilhelm | Schaltungsanordnung zur anzeige des spannungspegels von empfangsantennen |
US4182990A (en) * | 1978-05-19 | 1980-01-08 | Interstate Electronics Supply, Inc. | Radar receiver and method of indicating range to a radar source |
US4280204A (en) * | 1979-06-05 | 1981-07-21 | Polaroid Corporation | Mobility cane for the blind incorporating ultrasonic obstacle sensing apparatus |
GB2066469A (en) * | 1979-12-19 | 1981-07-08 | Brittain D J | Improvements in or Relating to Guidance Devices |
DE3211994C2 (de) * | 1982-03-31 | 1986-03-06 | Okoma Maschinenfabrik Gmbh, 7082 Oberkochen | Holzbearbeitungsmaschine |
DE3215523C1 (de) * | 1982-04-26 | 1983-09-29 | Wilhelm Ruf KG, 8000 München | Schaltungsanordnung zur Ortung Verschuetteter nach dem Sender/Empfaenger-Prinzip |
JP2626421B2 (ja) * | 1992-08-24 | 1997-07-02 | 住友金属工業株式会社 | 溶接性に優れた高張力鋼の製造方法 |
-
1986
- 1986-12-03 DE DE19863641310 patent/DE3641310A1/de not_active Withdrawn
-
1987
- 1987-11-28 ES ES198787117627T patent/ES2029259T3/es not_active Expired - Lifetime
- 1987-11-28 JP JP63500533A patent/JP2648355B2/ja not_active Expired - Fee Related
- 1987-11-28 US US07/246,541 patent/US4893288A/en not_active Expired - Fee Related
- 1987-11-28 EP EP88900218A patent/EP0292546B1/de not_active Expired - Lifetime
- 1987-11-28 DE DE8888900218T patent/DE3769793D1/de not_active Expired - Fee Related
- 1987-11-28 EP EP87117627A patent/EP0270958B1/de not_active Expired - Lifetime
- 1987-11-28 WO PCT/EP1987/000740 patent/WO1988004478A1/de active IP Right Grant
-
1988
- 1988-07-29 FI FI883560A patent/FI883560A0/fi not_active Application Discontinuation
- 1988-08-02 DK DK431688A patent/DK431688D0/da not_active Application Discontinuation
- 1988-08-02 KR KR1019880700914A patent/KR890700273A/ko not_active Application Discontinuation
-
1992
- 1992-03-11 GR GR920400418T patent/GR3004027T3/el unknown
Non-Patent Citations (1)
Title |
---|
See references of WO8804478A1 * |
Also Published As
Publication number | Publication date |
---|---|
ES2029259T3 (es) | 1992-08-01 |
EP0270958B1 (de) | 1991-12-11 |
DK431688A (da) | 1988-08-02 |
KR890700273A (ko) | 1989-03-10 |
JP2648355B2 (ja) | 1997-08-27 |
WO1988004478A1 (en) | 1988-06-16 |
US4893288A (en) | 1990-01-09 |
DE3641310A1 (de) | 1988-06-16 |
JPH01501569A (ja) | 1989-06-01 |
GR3004027T3 (de) | 1993-03-31 |
EP0292546B1 (de) | 1991-05-02 |
EP0270958A1 (de) | 1988-06-15 |
FI883560A (fi) | 1988-07-29 |
DE3769793D1 (de) | 1991-06-06 |
FI883560A0 (fi) | 1988-07-29 |
DK431688D0 (da) | 1988-08-02 |
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